In order to increase their production, which is far from covering the needs of the local population, farmers opt for the use of chemical fertilizers. However, the use of organic amendment via composting could be less expensive and beneficial for maximizing crop yields. However, the quality of compost depends on the nature of the material used and the composting time. The objective of this study is to determine the best formulations of compost from urban organic waste of the city of Daloa and the composting time favorable to the realization of quality compost. The device used is a split plot with three repetitions divided into three (3) blocks, consisting of two (2) factors (types of fertilizer and composting time). The fertilizers were applied at 100%, 50% and 25% and the composting times were: 2 months, 4 months, 6 months and 8 months. The study found that the F7 formulation (chicken manure, sawdust, rice bran, chapalo residue, charcoal, Tithonia diversifolia and household waste and grass clippings) had the best fertilizing properties for a composting time of 6 months. However the best dose applied with this formulation is 100%.
